Feed-water heater.



. S. ELLIOTT. FEED WATER HEATER. APPLICATION FILED APR.Z6,1911

Patented Mar. 25, 1913.

4 SHEETS-SHEET I.

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4 SHEETS-SHEET 2 W. S. ELLIOTT. FEED WATER HEATER. APPLICATION FILED APR.26,1911v Patented Mar. 25, 1913v 4 SHEETS-SHEET 3 sL\\\\\\\\\\\\\\\\\\\\\\\\\ k INVENTOR WITNESSES W. S. ELLIOTT.

FEED WATER HEATER.

APPLICATION FILED APR,26,1911

Patented Mar. 25, 1913 4 SHEETS-SHEET 41 NN NN WITNESSES INVENTOR WILLIAM S. ELLIOTT, OF PITTSBURGH, PENNSYLVANIA.

FEED-WATER HEATER.

Specification of Letters Patent.

Application filed April 26, 19. Serial No. 623.503.

To all whom it may concern:

Be it known that. I, W'TLLIAM S. Ecuo'rr,

of Pittsburgh, Allegheny county, Pennsylvania, have invented a 'new and useful Improvement in Fced-VVater Heaters, of which the following is a full, clear and. exact dcscription, reference being had to the accompanying drawings, forming part of. this specification, in which Figure 1 is a vertical section of one form of'feed water heater embodying my inven-' tion; Fig. 2 is a section on the line II-II of Fig. 1; Fi 3 is .a section on the line IIIIII of Fig. 2; and Fig. '4 is a section on the line IV--IV of Fig. 1.

My invcntionhas relation to feed water heaters; and is designed to provide a heater having a plurality of heating'compartments .or chambers, together with the necessary inlet and'outletpassages for water and steam, and controlling valves therefor, whereby said compartments may be operated simultaneously, or any compartment may be shut oil for cleaning, repairs, or for varying the ca pacity, or for any other purpose, without interference with the other compartment or compartments.

In the drawings, I have shown my invention as applied to a two-compartment or twin open type heater; but it is to be under? stood that I do not limit. myself to this construction, since a greater number of compartments may be employed, and the same features may be used on heaters of the closed type.

In the accompanying drawings, the nu moral 2 designates the casing or closure of the heater, which may be in general of any suitable construction, and which is provided with an interior, transverse partition extending the full width and length of the casing and dividing the latter into the two chambers or compartments 3 and 1. The casing is preferably provided with a suitable number of manhole or clean-out openings normally closed by means of covers 5.

The casing is provided at one side with the steam entrance chamber 6. From this chamber a port 7 opens into the compartment 3, and another port 8 opens iniothc compartment 4. Each of the ports 7 and 8 is arranged to be controlled by a valve 9, which is mounted in a suitable valve cage 10, and is carried by a stem ll which extends transversely across the interior of the casing and through the opposite wall thereheater.

of, being provided at its outer end with a suitable hand wheel 12, or other operating means.

The sealing face of each valve is preferably provided with a plurality of ribs or corrtigations 13, which act as separators for the oil and other foreign matter entrained in the entering steam. To catch this separated oil or other matter, a pocket 14 is formed below each valve, as best shown in Fig. 2, and having an outlet 15 at its bottom.

The steam enters the chamber 6 at the port 16, and when the heater is used in connection with a steam heating system placed opposite this port (sec Fi 2) is a baffle plate 17 having a corrugatef, or other suitable surface, to also act as a separator. At the lower ed e of this battle is a oeket- 18 from which leads a discharge pipe 9 which discharges into a pocket 20 at the bottom of the chamber 6.

mama Mar.25,19 13.,

sage 22 which is controlled by valve 23. I

When the heater is used inaconnection with a steam heating system, the passage 22 will connect to such system. Ifnotused in eonnection with a heating system, passage 22 will. lead to the atmosphere. The valve 23 provides means for regulating the amount of steam which may be passed into the This valve 23 may be closed while steam is being passed into the heater, or it may be opened or partially opened.

The water to be heated enters the com: partments 3 and 4 by means of the inlet pipes 24, one of which communicates with each of the compartments 3 and 4 at its upper end. Each of these pipes is provided with a control valve whose stem 25 has actuating connections 26 with a pivoted float lever 27 carrying a. float 28, there being one of these floats in each of the compartments 3 and 4, and each float controlling the valve v of the inlet pipe for that compartment. Each inlet pipe 24 is arranged to discharge into a receiving pan 29, which preferably has a saw-toothed upper edge 30. Placed below this receiving pan are a series of two or more relatively shallow trays 31 and '32,

the upper tray 31 receiving-the overflow from the saw-toothed edgeofthe pan 30 and having openings'lihjherein which disbe -moved [to 7 @110 char e into the lower tray 32. The tray 32! ows 'into the compartment, and this:

'may berpnveniently supported as indicated at 34 rejections carried by the side walls and by the central partition of the casin -The u per portion of each compartment is provi ed .with a steam outlet 35.

36 issa: valv'e actuated by a stem 37, and which'jmayoccupy a central position be-. tween the two passages 35, or which may jigeither one of said passages. The passages communicate with an outletfconnec'ti'on.38- (see.fFig. 1). V

Each compart "nt is provided'with anoutlet portigtfi, openin into an outlet connection 42,; and fivhic is controlled by a sliding valve 41 sirnilar to the valve 36 just described, In order toriprevent back flow from the outlet cqnnection 42, each port 40- is provided with. a check' valve 41-. The outletconnections preferablycxtend from outlet chambers 43, each of: which has an inlet OpGiIiIIg AQ'BGlOW the water line, and

also has a short pipe/15 extending from its top upwardly into the' compartment above the normal w ater'v line. The check valves, as will be seen, assist thefloat-controlled 1 inlet valves-in maintaining a" practically equal level inboth compartments, since the water from thechamberhaving the higher water level will tend tohold the check valve at the outlet of the other chamber closed as long as any difference in water level remains. Each compartment is also provided with an, overflow pipe or outlet 46, which extends within the compartment and nearly across the same, with laterally extending branches 47. The portions-of these outlet pipes within the compartments are in the form of troughs havin openings at the sides between the cover p ates 48 immediately above them. The openings into these troughs are at substantially the normal water level of the compartments, which level is maintained by the action of the float-controlled inlet valves in combination with the check valves 41'. These troughs form a means for removing and carrying off scum from the top of the water.

The operation will be readily understood from the foregoing description. It will be readily seen that either one or both of the compartments may be simultaneously in use; or that either compartment may be closed off while the other compartment-is out of use for any reason.

The entire heater is simple in its construction and cfiicient in its operation, both as a heater and as a steam separator.

It will be obvious that my invention is susceptible of numerous changes'in the dc tails of its construction and arrangement- Thus, the form and charactenof ,tlifehasing may be widely varied, any suitable forin of valve may be employed, and variousother changes may be made.

lVhat I claim is 1. A duplex water heater having partition means dividing its interior into two separate heating chambers, each of said heat-' ing'chambers havin a steam inlet and a water inlet, and each chamber also having a water out-let, together with valve means mounted on the heater and controlling the inlets and outlets, whereby either of said chambers may be operated to the exclusion of the other; substantially as described.

2. A duplex water heater having partitionmeans dividing its interior into two separate heating chambers, each of said heating chambers havin a steam inlet and a water inlet,.and each c 'amberalso having a water outlet, together with valve. means mounted on the heater'and controlling the inlets and outlets, whereby either of said chambers may be operated to the exclusion of the.

other, together with means for-maintaining substantially the same water levelin both chambers; substantially as described.

3. A duplex water heater having partition means dividing its interior into twoseparate heating chambers, each of said heating' chambers-having a steam inlet and a water inlet, "and each chamber also having a water outlet, together with valve means mounted on the heaterand controlling the inlets and outlets, whereby either of said chambers may be operated to the exclusion of the other, the valves for the steam. inlet openings being located interiorly of the heater and also forming steam separators.

4. A duplex'water heater having partition means dividing its interior into two separate heating chambers, each of said heating chambers having a steam. inlet and a water inlet, and each chamber also having a water outlet, together with valve means mounted on the heater and controlling the inlets and outlets, whereby either of said chambers may be operated to the exclusion of the other, the valves for the steam inletopcnings being located within the heating chambers and havin actuating rods extending across the cham ers and through the opposite side walls thereof; substantially as described. I v

5. A duplex water heater having internal partitioning means dividing it into two separate chambers, each of said chambers having a separate steam and water inlet, and

also a separate water outlet, the water outlets from the two chambers leading into a common passage, valve means for closing either outlet opening independent of the other, and an outwardly opening check valve in each of said openings; substantially as described.

having; a team inlet opening,

mo ems heater having internal partitioning mounn titling it into a pin in Ag; of epsirntc limiting il\;tli1l)t!" l. each of \l h rlmnibr-rfi hni ing in own strum and wot-av and also a wparntr ater millet. valve mvnnn mounted on the heater tor rontt'ulhig sand inlets and out whorl-l1} eil r (lllillllltil may be need to the exclusion of th other. together with Sop mating means for separating oil from the eiitm-ing steam: substantially as described.

7 h under hentor having internal partitioning iii-min: dividing it into two separate rihainli it steam inlet chamber carried by the mung anti having separate openings *mninni nting with the separate chambers hr. opal-ate valves for controlling mid valves also forming oil l the inlet chamber also hav- 4: outlet passage for the steam, iv ring a controlling valve and therein; substantially as de- :a separator scribrd.

8. in n Witter heaterheating chamber a valve arranged within the healer and movable toward and away from said openim to open and loam the anic, said valve having a t'1il?l.tt?"2ll((l seating face which forms an oil QFREP-WOY, and the heating chamber having a. povlcetbelow said ning to catch the separated oil; snibstantiallv as described.

i). A Water heater,

a steam inlet, and a alve controlling said inlet, said valve havlets and 1 ing its waiting are provided with a plumlity of rorrngations, said corrugations facing the inlet; substantially as described.

i A llQElltI having an inlet connection, a volnbizn-tl valve and separator plate controlling the passage of steam from the connection to the heater, and the inlet connection lmvizw n valve-controlled relief port; substantial? as described.

ll. A water heater having a steam inlet controlled by a valve disk, the face of said disk opposite the inlet constitutin an oil steparator; substantially as describe 12. A duplex water heater having partition means dividing its interior into two separate chambers, each of said heating vhnmbers having a-steam inlet and a water inlet, and each chamber also having a water outlet, valve means mounted on the heater and controlling the inlets and outlets, Whereby either of said chambers may be operate to the exclusion of the other, the water outlets of the respective chambers communicating with a common chamber or passage an :1 check valve for preventing the fluid from one heater chamber from entering the other rhamber when the latter is out out of service: substantially as described.

In testimony whereof, I have hereunto set Witnesses:

G50. H. PARMELEE, H. M. Conwm.

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